CN106654573B - Radio frequency antenna device - Google Patents
Radio frequency antenna device Download PDFInfo
- Publication number
- CN106654573B CN106654573B CN201710060010.8A CN201710060010A CN106654573B CN 106654573 B CN106654573 B CN 106654573B CN 201710060010 A CN201710060010 A CN 201710060010A CN 106654573 B CN106654573 B CN 106654573B
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- CN
- China
- Prior art keywords
- coupling block
- radiator
- radio frequency
- blocking unit
- electrically connected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000008878 coupling Effects 0.000 claims abstract description 119
- 238000010168 coupling process Methods 0.000 claims abstract description 119
- 238000005859 coupling reaction Methods 0.000 claims abstract description 119
- 239000004020 conductor Substances 0.000 claims abstract description 36
- 230000000903 blocking effect Effects 0.000 claims abstract description 29
- 239000012790 adhesive layer Substances 0.000 claims abstract description 15
- 239000003990 capacitor Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000000191 radiation effect Effects 0.000 description 4
- 230000005855 radiation Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005404 monopole Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
Landscapes
- Support Of Aerials (AREA)
Abstract
The invention provides a radio frequency antenna device which comprises a carrier, an antenna structure arranged on the carrier, a high-frequency blocking unit and a proximity sensor. The antenna structure comprises a support frame arranged on the supporting body, a first coupling block positioned on the support frame, a second coupling block positioned on the supporting body, an insulating adhesive layer for adhering the first coupling block and the second coupling block, a radiator arranged on the support frame and connected with the first coupling block, and a feed-in conductor arranged on the support frame. The feed-in conductor is used for feeding in radio frequency signals and transmitting the radio frequency signals to the radiator. The high-frequency blocking unit is electrically connected to the first coupling block, the proximity sensor is electrically connected to the high-frequency blocking unit, and the proximity sensor is electrically connected to the first coupling block and the radiator through the high-frequency blocking unit.
Description
Technical Field
The present invention relates to an antenna device, and more particularly, to a radio frequency antenna device.
Background
In order to control the radiation value generated by the handheld electronic device to the human body, a Proximity sensor (P-sensor) is additionally added at the main antenna position of the Wireless Wide Area Network (WWAN) to sense the Proximity of the human body when the handheld electronic device is designed, so as to start a protection mechanism for reducing the power to reduce the radiation value generated by the handheld electronic device.
Furthermore, at least one capacitor is required to be disposed between the radiator and the ground in the conventional antenna structure, so that the radiator can be connected to the proximity sensor in a matching manner and can be used as a capacitive electrode of the proximity sensor. That is, since the radiator of the conventional antenna structure must be used as the capacitive electrode of the proximity sensor, a capacitor must be provided on the radiator. However, under the above-mentioned structure of the radiator and the capacitor, the problems of influencing the radio frequency radiation efficiency, increasing the cost and increasing the manufacturing steps are obviously generated.
Accordingly, the present inventors considered that the above-mentioned drawbacks could be improved, and have intensively studied and combined with the application of scientific principles, and finally have proposed an invention which is reasonable in design and effectively improves the above-mentioned drawbacks.
Disclosure of Invention
An embodiment of the present invention is to provide a radio frequency antenna device, which is used for improving the above problems easily caused by the existing antenna structure.
The embodiment of the invention discloses a radio frequency antenna device, which comprises: a carrier; an antenna structure, comprising: a supporting frame arranged on the supporting body; the grounding conductor is provided with a first coupling block and a second coupling block which are mutually separated, part of the first coupling block is arranged on the supporting frame, and the second coupling block is used for grounding and is arranged on the supporting body; an insulating adhesive layer disposed between the first coupling block and the second coupling block so that the first coupling block is attached to the second coupling block and does not affect the mutual coupling of the first coupling block and the second coupling block; the radiator is arranged on the support frame and connected with the first coupling block; the feed-in conductor is arranged on the support frame and is used for feeding a radio frequency signal and transmitting the radio frequency signal to the radiator; the radiator can be used as a capacitance electrode so as to generate a capacitance value which correspondingly changes according to the distance between the radiator and an external object; a high frequency blocking unit mounted on the carrier and electrically connected to the first coupling block; and a proximity sensor mounted on the carrier and electrically connected to the high-frequency blocking unit, the proximity sensor being electrically connected to the first coupling block and the radiator via the high-frequency blocking unit.
The embodiment of the invention also discloses a radio frequency antenna device, which comprises: an antenna structure, comprising: a grounding conductor having a first coupling block and a second coupling block which are disposed apart from each other and coupled to each other, and the second coupling block is used for grounding; a radiator connected to the first coupling block; and a feed conductor for feeding a radio frequency signal and transmitting the radio frequency signal to the radiator; the radiator can be used as a capacitance electrode so as to generate a capacitance value which correspondingly changes according to the distance between the radiator and an external object; a high frequency blocking unit electrically connected to the first coupling block; and a proximity sensor electrically connected to the high frequency blocking unit, and electrically connected to the first coupling block and the radiator via the high frequency blocking unit.
As described above, in the rf antenna device disclosed in the embodiments of the present invention, the first coupling block and the second coupling block of the ground conductor are separately disposed and coupled with each other, so that no additional capacitor is required to be installed, which affects the rf radiation effect of the antenna structure, and further the component cost of the antenna structure of the present embodiment can be reduced, the manufacturing process can be simplified, and the rf radiation effect can be effectively improved.
For a further understanding of the nature and the technical aspects of the present invention, reference should be made to the following detailed description of the invention and the accompanying drawings, which are included to illustrate and not to limit the scope of the invention.
Drawings
Fig. 1 is a schematic perspective view of a radio frequency antenna device according to the present invention.
Fig. 2 is an exploded view of fig. 1.
Fig. 3 is a schematic perspective view of a partial assembly of fig. 1.
Fig. 4 is a schematic perspective view of the subassembly of fig. 1 from another perspective.
Fig. 5 is an exploded view of fig. 3.
Fig. 6 is an exploded view of fig. 4.
Fig. 7 is a schematic perspective view of another embodiment of an rf antenna device according to the present invention.
In the figure:
100: radio frequency antenna device
1: carrier body
2: antenna structure
21: supporting frame
211: top surface
212: bottom surface
213. 213': long side
214: short side
22: soft board
23: grounding conductor
231: first coupling block
2311: adjusting part
2312: connecting part
232: second coupling block
24: insulating adhesive layer
25: radiator body
26: feed-in conductor
27: electric connector
3: high frequency blocking unit
4: proximity sensor
200: signal feed-in line
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings.
Referring to fig. 1 to 7, an embodiment of the present invention is described first, and the number and shape of the embodiment corresponding to the related drawings are only used for illustrating the embodiments of the present invention in detail, so as to facilitate understanding of the present invention, and not to limit the protection scope of the present invention.
As shown in fig. 1, the present embodiment discloses a radio frequency antenna device 100 for being installed in an electronic device (not shown) to be used with a signal feed-in line 200 in the electronic device. The electronic device may be, for example, a notebook computer, a tablet computer, a Global Positioning System (GPS) device, a handheld mobile device (e.g., a mobile phone), or a wearable mobile device (e.g., a wristwatch).
The rf antenna device 100 in this embodiment includes a carrier 1, an antenna structure 2, a high frequency blocking unit 3 disposed on the carrier 1, and a proximity sensor 4 (P-sensor module) disposed on the carrier 1 and electrically connected to the antenna structure 2 through the high frequency blocking unit 3. The carrier 1 may be a stand-alone circuit board or a back cover of an electronic device, which is not limited herein.
As shown in fig. 2 to 4, the antenna structure 2 of the present embodiment preferably does not include any capacitor, but the present invention is not limited thereto. The antenna structure 2 comprises a supporting frame 21, a flexible board 22, a grounding conductor 23, an insulating adhesive layer 24, a radiator 25, a feed-in conductor 26 and an electrical connector 27. As shown in fig. 5 and 6, the supporting frame 21 of the present embodiment is substantially rectangular and has a top surface 211, a bottom surface 212, two long side surfaces 213, 213', and two short side surfaces 214. The supporting frame 21 is disposed on the carrier 1 with its bottom surface 212. The flexible board 22 is flexibly coated on at least four surfaces (such as the top surface 211, the bottom surface 212, and the two long side surfaces 213, 213') of the supporting frame 21.
As shown in fig. 2 to 4, the ground conductor 23 has a first coupling block 231 and a second coupling block 232 that are disposed apart from each other. The first coupling block 231 is formed on the flexible board 22, and a portion of the first coupling block 231 is disposed on the bottom surface 212 of the supporting frame 21 and defined as a connection portion 2312, while the rest of the first coupling block 231 is not disposed on the supporting frame 21 and defined as an adjustment portion 2311. The main function of the adjusting portion 2311 is to couple the second coupling block 232, and since the adjusting portion 2311 is not required to be disposed on the supporting frame 21, the size can be changed according to the requirements of the designer. For example, in order to enable the support frame 21 to effectively carry the adjustment portion 2311, the area of the adjustment portion 2311 is preferably not greater than 1/3 of the outer surface area of the support frame 21, but the present invention is not limited thereto.
Furthermore, the second coupling block 232 is disposed on the carrier 1, and the second coupling block 232 mainly functions to couple the first coupling block 231 and to be grounded. In the present embodiment, the first coupling block 231 and the second coupling block 232 are located at opposite positions, and the second coupling block 232 is preferably located in a projection area formed by orthographic projection of the adjusting portion 2311 of the first coupling block 231 toward the carrier 1, but the invention is not limited thereto.
For example, as shown in fig. 7, the first coupling block 231 may be substantially on the same plane as the second coupling block 232, and the first coupling block 231 and the second coupling block 232 are disposed separately and coupled to each other; alternatively, in an embodiment not shown, the second coupling block 232 may be located in a projection area formed by orthographic projection of the first coupling block 231 toward the carrier 1, so that the adjusting portion 2311 and the connecting portion 2312 of the first coupling block 231 can be coupled to the second coupling block 232.
The insulating adhesive layer 24 is disposed between the first coupling block 231 and the second coupling block 232, so that the first coupling block 231 is attached to the second coupling block 232, and the mutual coupling of the first coupling block 231 and the second coupling block 232 is not affected. Further, the adjustment portion 2311 needs to be fixed, and the insulating adhesive layer 24 is used to isolate the dielectric material of the first coupling block 231 and the second coupling block 232 while the adjustment portion 2311 is fixed by the insulating adhesive layer 24, so that the fixing operation of the adjustment portion 2311 and the coupling operation of the first coupling block 231 and the second coupling block 232 can be performed in the same step, and the manufacturing process of the rf antenna device 100 is effectively simplified.
The radiator 25 is formed on the flexible board 22 and disposed on the top surface 211 and one of the long side surfaces 213 of the support 21, and the radiator 25 is connected to the first coupling block 231 located on the bottom surface 212 of the support 21, and the adjusting portion 2311 of the first coupling block 231 is far away from the radiator 25 located on the long side surface 213. The shape of the radiator 25 and the position of the radiator on the support frame 21 can be adjusted according to the requirements of the designer, and is not limited to this embodiment.
The feed-in conductor 26 is formed on the flexible board 22 and disposed on the top surface 211 and the other long side surface 213' (as shown in fig. 5) of the supporting frame 21, and the feed-in conductor 26 is connected to the signal feed-in line 200 for feeding in a radio frequency signal and transmitting the radio frequency signal to the radiator 25. The feed conductor 26 and the radiator 25 of the present embodiment are separately disposed and coupled to each other, but not limited thereto. For example, in an embodiment not shown, the feed conductor 26 may be connected to the radiator 25, and a capacitor is provided on the feed conductor 26.
The electrical connector 27 is mounted on the adjustment portion 2311 of the first coupling block 231, and the electrical connector 27 and the insulating adhesive layer 24 are respectively located on opposite sides (adjustment portion 2311) of the first coupling block 231.
The high-frequency blocking unit 3 is mounted on the carrier 1 and electrically connected to the first coupling block 231. The high-frequency blocking unit 3 refers to a component or structure (such as an inductor and a wire connected thereto, or a microstrip line) capable of generating an inductance effect in the present embodiment. And the high frequency blocking unit 3 of the present embodiment is detachably electrically connected to the first coupling block 231 through the electrical connector 27. Furthermore, the proximity sensor 4 is mounted on the carrier 1 and electrically connected to the high-frequency blocking unit 3, and the proximity sensor 4 is electrically connected to the first coupling block 231 and the radiator 25 via the high-frequency blocking unit 3.
The above description is given of the structure of the rf antenna device 100 of the present embodiment, and the operation of the rf antenna device 100 is described below. The radiator 25 can be used as a capacitive electrode for sensing an external object (e.g., a human body); the radiator 25 can also be said to act as a capacitive electrode of the proximity sensor 4. Therefore, when the radiator 25 is used as the capacitive electrode, a capacitance value corresponding to the distance between the radiator 25 and an external object can be generated.
Furthermore, the first coupling block 231 and the second coupling block 232 of the grounding conductor 23 can be in an open state when the radiator 25 is used as a capacitive electrode, so that the detection signal does not flow through the second coupling block 232. The high-frequency blocking unit 3 is capable of assuming an open state when the feed-in conductor 26 is used for transmitting (e.g., coupling) the rf signal to the radiator 25, so that the rf signal does not flow to the proximity sensor 4.
In more detail, when the radiator 25 of the antenna structure 2 has a sensing signal, the first coupling block 231 and the second coupling block 232 of the ground conductor 23 have a high impedance value corresponding to an open circuit, and the high frequency blocking unit 3 has a low impedance value corresponding to a short circuit, so that the radiator 25 can be directly used as a capacitive electrode of the proximity sensor 4. When the antenna structure 2 feeds the conductor 26 to transmit (e.g., couple) the rf signal to the radiator 25, the first coupling block 231 and the second coupling block 232 of the ground conductor 23 have a low impedance corresponding to a short circuit, and the high-frequency blocking unit 3 has a high impedance corresponding to an open circuit, so that the proximity sensor 4 can be effectively isolated from the rf signal, and the feeding conductor 26, the ground conductor 23, and the radiator 25 can transmit the rf signal to be used as a monopole antenna.
Thus, when the external object is far away from the antenna structure 2, the electronic device (not shown) using the rf antenna device 100 of the present embodiment will not limit and influence the rf signal power transmitted by the proximity sensor 4. However, when the external object is closer to the antenna structure 2, the capacitance between the radiator 25 of the antenna structure 2 and the external object will correspondingly increase, so that the proximity sensor 4 transmits a corresponding signal to the electronic device, thereby reducing the power of the radio frequency signal transmitted by the electronic device, reducing the electromagnetic radiation intensity of the near field, and further enabling the user to conform to the radio frequency signal power limited by the current regulations when operating the electronic device in a close range.
In another embodiment, not shown, the rf antenna device 100 may omit at least one of the carrier 1, the support 21, the flexible board 22, and the insulating adhesive layer 24, and be implemented with other components or manufacturing methods. In the rf antenna device 100, the first coupling block 231 and the second coupling block 232 of the ground conductor 23 may be opposite to each other or disposed on the same plane and separated by air after omitting the insulating adhesive layer 24.
In summary, in the rf antenna device 100 disclosed in the embodiment of the invention, the grounding conductor 23 is connected to the first coupling block 231 and the second coupling block 232 through the insulating adhesive layer 24, and simultaneously couples the first coupling block 231 and the second coupling block 232 to each other, so that no additional capacitor is required to be installed, which affects the rf radiation effect of the antenna structure 2, and further the component cost of the antenna structure 2 of the embodiment can be reduced, the manufacturing process can be simplified, and the rf radiation effect can be effectively improved.
Furthermore, the first coupling block 231, the radiator 25 and the feed-in conductor 26 of the grounding conductor 23 of the present embodiment are formed on the same flexible board 22, and then the flexible board 22 is folded and wrapped on the supporting frame 21, so as to effectively simplify the production steps of the antenna structure 2 and further improve the yield.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, but all equivalent changes and modifications according to the claims of the present invention shall fall within the scope of the claims.
Claims (7)
1. A radio frequency antenna apparatus, comprising:
a carrier;
an antenna structure, comprising:
a supporting frame arranged on the supporting body;
the grounding conductor is provided with a first coupling block and a second coupling block which are mutually separated, part of the first coupling block is arranged on the supporting frame, and the second coupling block is used for grounding and is arranged on the supporting body; at least part of the first coupling block is not arranged on the support frame and is defined as an adjusting part, and the area of the adjusting part is not more than 1/3 of the outer surface area of the support frame;
an insulating adhesive layer disposed between the first coupling block and the second coupling block so that the first coupling block is attached to the second coupling block and does not affect the mutual coupling of the first coupling block and the second coupling block; the antenna structure is provided with an electric connector which is arranged on the adjusting part, and the electric connector and the insulating adhesive layer are respectively positioned on two opposite sides of the adjusting part;
the radiator is arranged on the support frame and connected with the first coupling block; and
The feed-in conductor is arranged on the support frame and is used for feeding a radio frequency signal and transmitting the radio frequency signal to the radiator; the radiator can be used as a capacitance electrode so as to generate a capacitance value which correspondingly changes according to the distance between the radiator and an external object;
a high frequency blocking unit mounted on the carrier and electrically connected to the first coupling block; the high frequency blocking unit is detachably electrically connected to the first coupling block through the electrical connector; and
the proximity sensor is arranged on the carrier and is electrically connected with the high-frequency blocking unit, and the proximity sensor is electrically connected with the first coupling block and the radiator through the high-frequency blocking unit.
2. The rf antenna device of claim 1, wherein the antenna structure includes a flexible board, the first coupling block of the ground conductor, the radiator, and the feed conductor are all formed on the flexible board, and the flexible board is coated on at least four surfaces of the support frame.
3. The radio frequency antenna device according to any one of claims 1-2, wherein the feed conductor and the radiator are separate and mutually coupleable.
4. A radio frequency antenna device according to claim 3, wherein the antenna structure does not comprise any capacitor.
5. A radio frequency antenna apparatus, comprising:
an antenna structure, comprising:
a grounding conductor having a first coupling block and a second coupling block which are disposed apart from each other and coupled to each other, and the second coupling block is used for grounding; the antenna structure comprises an insulating adhesive layer arranged between the first coupling block and the second coupling block, so that the first coupling block is attached to the second coupling block without influencing the mutual coupling of the first coupling block and the second coupling block;
a radiator connected to the first coupling block; and
A feed conductor for feeding a radio frequency signal and transmitting the radio frequency signal to the radiator; the radiator can be used as a capacitance electrode so as to generate a capacitance value which correspondingly changes according to the distance between the radiator and an external object;
a high frequency blocking unit electrically connected to the first coupling block; and
the proximity sensor is electrically connected to the high-frequency blocking unit and is electrically connected to the first coupling block and the radiator through the high-frequency blocking unit.
6. The radio frequency antenna device according to claim 5, wherein the antenna structure has an electrical connector mounted on the first coupling block, and the electrical connector and the insulating adhesive layer are respectively located on opposite sides of the first coupling block, and the high frequency blocking unit is detachably electrically connected to the first coupling block through the electrical connector.
7. The radio frequency antenna device according to any one of claims 5 to 6, wherein the feed conductor and the radiator are separate and coupled to each other, the antenna structure not including any capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710060010.8A CN106654573B (en) | 2017-01-24 | 2017-01-24 | Radio frequency antenna device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710060010.8A CN106654573B (en) | 2017-01-24 | 2017-01-24 | Radio frequency antenna device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106654573A CN106654573A (en) | 2017-05-10 |
| CN106654573B true CN106654573B (en) | 2023-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710060010.8A Active CN106654573B (en) | 2017-01-24 | 2017-01-24 | Radio frequency antenna device |
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| CN (1) | CN106654573B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114337715B (en) * | 2020-09-30 | 2024-10-01 | 南京矽力微电子(香港)有限公司 | Multi-section type co-radiator antenna and wearable device using same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206574853U (en) * | 2017-01-24 | 2017-10-20 | 耀登电通科技（昆山）有限公司 | Radio frequency antenna apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8094429B2 (en) * | 2009-06-22 | 2012-01-10 | Industrial Technology Research Institute | Multilayer capacitors and methods for making the same |
| CN102714357B (en) * | 2010-01-27 | 2015-05-27 | 株式会社村田制作所 | Broadband antenna |
| JP5560802B2 (en) * | 2010-03-18 | 2014-07-30 | ソニー株式会社 | Communication device |
| CN104124991B (en) * | 2013-04-25 | 2016-08-03 | 启碁科技股份有限公司 | Radio-frequency unit and radio communication device |
| CN203674391U (en) * | 2014-01-16 | 2014-06-25 | 台湾立讯精密有限公司 | Antenna structure comprising distance inductor |
| CN105789820B (en) * | 2014-12-23 | 2020-01-14 | 深圳富泰宏精密工业有限公司 | Antenna structure and wireless communication device with same |
| TW201711272A (en) * | 2015-09-11 | 2017-03-16 | 耀登科技股份有限公司 | Proximity sensor antenna device and antenna structure thereof |
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2017
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206574853U (en) * | 2017-01-24 | 2017-10-20 | 耀登电通科技（昆山）有限公司 | Radio frequency antenna apparatus |
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